Lasting machine



B, AJORGENESEN LASTING MACHINE May 2, 1939.

Filed July 7, 1938 3 Sheets-Sheet l wwf/v70@ 3 Sheets-Sheet 2 May 2, 1939.

B. JORGENSEN LASTING MACHINE Filed July 7, 1938 3 Sheets-Sheet 3 Av1/@VZW Patented May 2, 1939 UNITED STATES PATENT OFFICE LASTING MACHINE Application July 7, 1938, Serial No. 217,932

8 Claims.

This invention relates to lasting machines, and is herein illustrated as applied to a machine of the same general character as disclosed in United States Letters Patent No. 2,075,852, granted on April 6, 19'3'7 upon an application of mine. The invention has particularly in View improvements in an organization of that character, but it is to be understood that it is generally applicable to machines which may differ substantially from the details of that disclosure.

The machine shown in the above-mentioned Letters Patent is provided with toe wipers and heel wipers for wiping the margin of an upper inwardly over an insole on a last into position to adhere to the insole at the toe and heel ends respectively, spring-controlled members for supporting the last and shoe at the toe and heel ends respectively against pressure on the bottom of the shoe, and controlling devices which act on the bottom of the shoe at the toe and heel ends respectively to position the shoe heightwise against the resistance of the supporting members. In the course of the power operation of the machine, when the toe and heel wipers are over the shoe bottom in engagement with the overwiped margin of the' upper, a retractive movement heightwise of the shoe is imparted to the toeend controlling device to permit the shoe to be pressed more firmly against the toe wipers by v.the spring-controlled toe-end support, the heelend controlling device receiving at the same time a corresponding retractive movement, since the two devices are operated by a lever arm common to both of them. In View of the fact that any actual movement of the toe end of the shoe toward the toe wipers at this time is very small, the above-mentioned Letters Patent discloses means for locking the spring-controlled heel-end support to prevent it from. imparting any movement to the heel end of the shoe when the heelend controlling device is thus retracted, thereby avoiding any possibility of tipping the shoe in such manner as to alTect undesirably its relation to the toe wipers. The heel-end controlling device, however, acts on the shoe through the heel wipers after the wipers have been moved lnwardly over the shoe bottom, the heel wipers being so mounted as to permit them to move relatively to the shoe in directions heightwise of the shoe. Accordingly, when the heel-end support is locked as above described, the retractive movement of the heel-end controlling device re.- sults in some relief of the pressure of the heel wipers on the shoe. While it is true that prior to this time in the operation of the machine the heel end of the shoe is pressed firmly against the heel wipers by the heel-end support, it may be desirable under some conditions'to maintain this pressure while the toe end is pressed against the toe wipers in response to the retractive move- 5 ment of the toe-end controlling device.

In view of the above and other considerations, the present invention provides, instead of means for locking the heel-end support as heretofore, means whereby retractive movement of the heelend controlling device is prevented at the time when the pressure of the toe-end device on the shoe is relieved to permit the toe end of the shoe to be pressed more firmly against the toe wipers. This insures against any undesirable l, tipping of the shoe by the action of the heelend support and also avoids any relief of the pressure of the heel wipers on the shoe. The construction herein shown comprises a latch which locks the heel-end controlling device temporarily against retractive movement after its movement'to position the shoe, such control of the device being permitted by providing the connections between this device and its operating member, which vis common also to the toe-end device, with parts which are relatively movable idly by this member when the toe-end device is retracted for the purpose described. When a machine of the illustrated type does not include heel wipers, as is sometimes the case, the construction provided by the present invention likewise serves to prevent undesirable tipping of the shoe, the heel-end controlling device in that case acting directly on the shoe at the time when the toe-end device is retracted.

The novel features of the invention, including various novel details of construction and co-mbinations of parts, will now be more particularly described with reference to the accompanying drawings and thereafter pointed out in the claims.

In the drawings,

Fig. 1 is a view mainly in front elevation of the upper portion of a machine in which the invention is embodied, with parts in section, the parts of the machine being shown in the positions which they occupy at the time in the operation of the machine when the toe and heel wipers are over the shoe bottom in engagement with the overwiped margin ci the upper;

Fig. 2 shows the machine partly in right-hand end elevation and partly in section at an earlier time in the operation than illustrated in Fig. 1,;

Fig. 3 is an enlarged view of certain parts 65 Y shown in Fig. 2, as they appear at the time in mentioned therein, only such portions of the ma-V chine as it is necessary to refer to for an understandin-g of the present invention are shown in the drawings, and the parts which are common to the earlier construction will be only briefly described. The shoe to be lasted at its toe and heel ends is mounted on a toe-end support or toe rest 2 yieldingly depressible against the resistance of a spring 4 and on a heel-end support comprising a post 6 provided with a last pin 8, the post being supported on a slide I8 yieldingly depressible against the resistance of a spring I2.v The shoe is clamped about its heel end by a bandv I4 and is operated upon at this end-by heel wipers I6, the'band and the heel wipers being supported by the slide I6 for downward movement with this slide and the shoe. The

wipers I6 are more immediately supported by aspring-controlled plunger I8 depressible relatively to the slide I0 and relatively to which they may swing heightwise of the shoe about the axis of trunnions 20, and by other spring-controlled plungers 22 located beneath them. The wipers are advanced lengthwise of the shoe to wipe thel margin of the heel end of the upper inwardly over the insole by movement of a plunger 24 A and are swung inward or closed laterally of the shoe in response to the movement of this plunger bythe action of links 26 (Fig. 4). For operating the plunger 24 there is provided a bell-crank lever 28 mounted for swinging movements on the frame of the machine. crank lever carries a plate 30 for engaging a roll 32 on the end of the plunger 24 and imparting to the plunger its wiper-operating movement. Connected to the other arm of the bell-crank lever is a link 34 through which the lever is operated by an arm 36 (Fig. 2) fast on a camoperated rock shaft 38.

Prior-to the operation of the heel wipers I6 on the shoe, however, the shoe and its toe-'and heel end supports, together with the heel band I4 and the heel wipers I6, are depressed to cause a toe band 40 to wipe the toe portion of the upper upwardly over the last and to position the shoe at the proper height relatively to toe wipers 42 which are operated to wipe the marginal portion of the toe end of the upper inwardly over the insole simultaneously with the operation of the heel wipers, an upward pull also being applied to the toe end of the upper by cooperating clamp members 44 and 46 as the shoe is thus depressed. Such depression of the shoe is eiected by controlling devices arranged to act on the bottom of the shoe at its toe and heel ends respectively. I'he device at the toe end comprises an arm 48 which carriesa toeV presser'foot 5I) arranged to engage the insole and also carries other parts whichit is unnecessary to refer to herein. The device at the heel end comprises .a block 52 which carries a heel presser foot 54 arranged to engage the heel Vend of the insole. The arm 48 is fast on two vertically alined rods 56 and 58 mounted to turn and also to move vertically inrbearings in the frame, and the block 52 is fast on a rod 60 also mounted `for turning movement and for vertical move- One arm of the bell-` ment. By means of a handle 62 the operator swings the arm 48 forwardly to carry the toe presser foot 50 to a position over the shoe, whereupon the machine is started in operation and the rods 56 and 58 are moved downward simultaneously with the rod 60 by means hereinafter described, the rod 68 being turned automatically to bring the heel presser foot 54 quickly to a position over the shoe before it engages the insole. The block 52 Vcarries a member 64 provided at its lower end with two arms 66, only one of which appears in the drawings, these arms being arranged to engage the heel wipers I6 and to depress them relatively to the shoe against the resistance of the spring plungers 22 until the heel presser foot 54 engages the insole, thus positioning the wipers at the proper height relatively to the shoe, a screw 68 carried by the block 52 being .also arranged to engage the wipersupporting plunger I8 and correspondingly to depress this plunger. as the block 52 thereafter continues its downward movement the heel wipers are depressed with the shoe without altering their relation to the shoe. When the heel wipers are thereafter operated by the bell-crank lever 28, the arms 66 by pressing on the wipers maintain them in proper relation to the shoe bottom.

Near the end of the inward movement of the heel wipers the heel end of the shoe is released from control of the presser foot 54, so that by the action of the spring i2 on the heel-end support the heel end of the shoe is pressed more firmly up against these wipers. For this purpose the presser foot 54 is mounted on a slide 'I0 vertically movable in the member 84 and is controlled by a latch 'I2 pivotally mounted on this slide and normally engaging a shoulder formed on another vertically movable slide 'I4 which abuts against a screw i6 threaded in the member 64 for adjusting the presser foot heightwise of the shoe relatively to this member. Near Vthe end of the operative movement of the heel wipers a shoulder 'I8VV on Vthe wiper-operating plunger 24 engages the latch I2 and swings it out from under the slide 14, as illustrated in Fig. 1, so that the presser foot 54 is no longer positively controlled by the b-lock 52.- The heel wipers I6, however, Vare still positively controlled by the arms 66, so that they cannot move upwardly, .and accordingly the block 52 serves through these arms and the wipers to position the heel end of the shoe heightwise against the resistance of the heel-end support after the presser foot 54 has thus been released by the latch.

As thus far briefly described, the machine herein shown Yis constructed Y substantially as heretofore, as disclosed mainly in the previously mentioned Letters Patent No. 2,075,852 and in some Vrespects also in greaterY detail in Letters PatentNo. 1,979,269, granted on November 6, 1934 upon an application of mine..A As heretofore also, themachine herein shown is so constructed Ythat after the toe and heel wipers have been operated to wipe the margin ,of the upper over the insole and while they are positioned over the shoe bottomthe rods 56 and 58 supporting the arm 48 and the toe presser foot 58 are raised a short Ydistance to retract the presser foot heightwise of the shoe and thus to permit the toe end of the shoe to be pressed upward more forcibly against the toe wipers by the springcontrolled toe rest 2. As more particularly hereinafter described, however, the rods 56 and 58 are operated and controlled by a member which also operates and controls the rod 60 which carries the block 52, so that this rod is operated to depress the shoe simultaneously with the other rods, the construction provided heretofore being further such that when the toe presser foot 50 is raised for the purpose above described the rod 60 and the block 52 are also raised an equal distance. It will be evident that in consequence of such upward movement of the block 52 the spring |2 acting through the heel-end support will, unless prevented, raise the heel end of the shoe, .and since the toe end actually receives only a very short upward movement to cause it to press more firmly against the toe wipers, the greater upward movement of the heel end of the shoe may tip the shoe enough to cause the toe wipers to press unevenly on the margin of the upper, especially in the operation of the machine on a childs shoe. The previously mentioned Letters Patent No. 2,075,852 accordingly discloses means for locking the heel-end support against upward movement at this time; but it will be evident that in that case the upward movement of the block 52 results in relieving the pressure of the heel wipers on the shoe by reason of the upward movement of the arms 66. While the heel end of the shoe has already been pressed firmly upward against the heel wipers before the toe end of the shoe is pressed up against the toe wipers, by reason of the release of the heel presser foot by the latch 12, it may be desirable under some conditions to maintain the full pressure of the heel wipers on the shoe when the pressure of the shoe against the toe wipers is increased. The present invention accordingly provides a construction whereby this result is accomplished, the machine being provided with means which prevents the rod and the block 52 from rising at the time when the toe presser foot is lifted for the purpose above described, this means being substituted for the means provided heretofore for locking the heel-end support against upward movement. By reference to Figs. 2 and 3 it will be seen that there is clamped on the rod G0 a collar 80 provided with a tooth 82 arranged to be engaged by a latch 84 which is fastened to one end of a lever 86 mounted between its ends to swing about a shaft B8 with whichthe machine is provided. The weight of the left-hand arm of the lever (Figs. 2 and 3) causes the lever, when permitted, to swing into position to engage the latch 84 with the tooth 82, as shown in Fig. 3, and thus to lock the rod 80 against upward movement. The lever 85, however, is controlled by the bell-crank lever 28 which operates the heel wipers, by reason of the fact that the head of a screw threaded in one end of the lever 85 is arranged to rest on a lug 92 on one arm of the bell-crank lever 28. When this bell-crank lever is in its initial position, as illustrated in Fig. 2, the latch 84 is heldin an idle position, so that when the rod 80 is moved downward to depress the shoe the tooth 82 will pass the latch. When the heel wipers are thereafter operated the movement of the bell-crank lever 28 permits the lever 86 to swing into position to cause the latch 8d to engage the tooth 82, the parts being so arranged that the latch ts closely over the tooth so as to prevent any appreciable upward movement of the rod 60 thereafter when the toe presser foot 50 is retracted to relieve its pressure on the shoe. Accordingly at this time the heel end of the shoe will not be raised nor will there be any relief of the pressure of the heel wipers on the shoe.

In order to permit the rod 60 to be locked as above described when the toe presser foot is raised, this rod is operated and controlled by mechanism. which differs somewhat from that used heretofore, although it is moved downwardly and is later returned to starting position simultaneously with corresponding movements of the rods 56 and 58 by the action of a camoperated lever arm 94 (Fig. 2) common toI the several rods. This arm carries a roll 96 engaged by a path cam 9B formed in a cam wheel |00 which is fast on a cam shaft |02, and the arm is fast on a rock shaft |04 which carries another arm |06 connected as heretofore by a link |08 to a coupling member I |0 to which the rod 58 is connected at its lower end, the rod having a head swiveled in the coupling member to permit turning movement of the rod. Also fast on the rock shaft |04 is an arm ||2 connected by a link Hd to an arm H8 which is mounted to swing about the previously mentioned shaft 38 and has integral therewith another arm I8 connected to a coupling member |20. This coupling member in the construction herein shown is not' connected directly to the rod 60, but to the lower end of a short rod |22 the upper portion of which extends into a bore in the rod 60 and carries a transverse pin |24 the ends of which lie in vertical slots |26 in the rod 60. There is accordingly provision fort limited lengthwise movement of the rod |22 relatively to the rod 60, the pinand-slot connection, however, preventing relative turning movement of these rods. Between the lower end of the rod 60 and a flange |28 on the rod |22 is a spring |30 which is yieldable to permit upward movement of the rod |22 when the rod Eli is locked against upward movement by the latch 8d. rod 60 is locked, movement of the cam-operated arm 94 to lift the rod 58 and raise the toe presser' foot 50 the amount required is permitted by the provision aiforded for idle movement of the rod |22 relatively to the rod 60. The lower end of the rod |22 is connected to the coup-ling member 20 in the same manner that the rod 58 is connected to the coupling member H8, so as to permit the required turning movement of the rod G0 and the rod |22 in the operation of the machine. t will be understood that when the latch 8A is retracted by the bell-crank lever 28 to release the rod 60 in the return of the parts of the machine to starting positions the spring |30 expands until the pin |24 is seated again at the lower ends of the slots |26 in the rod 60, and that this pin serves as a positive connection between the rod |22 and the rod 50 for imparting the downward movement to the rod 60 to depress the shoe.

In the machine herein shown the heel wipers I8 are so constructed as tobe adjustable in length for shoes of different sizes. For this purpose there are provided comparatively thin upper-engaging wiper plates |32 (Figs. l and 4) mounted in recesses in the lower faces of hinged wiper plates |34 which correspond generally to the wiper plates used heretofore in machines of this type, the thin plates |32 in the illustrated construction actually engaging the greater portion of the margin of the heel end of the upper. The plates |32 have upraised portions |38 lying in corresponding guideways in the plates |34 to guide the plates |32 intheir adjustments lengthwise of the shoe, and threaded in these upraised portions are screws |38 which extend through Accordingly, even though the slots |40 in the plates |34 and serve to secure the plates |32 in their adjusted positions.

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is:

l. In a power-operated lasting machine, wipers for wiping the margin of the toe end of an upper inwardly over an insole on a last, means for supporting the last and shoe yieldingly against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting means, automatic means for relieving the pressure of the toe-end device on the shoe when the toe wipers are over the shoe bottom to permit the toe end of the shoe to be pressed more firmly against said Wipers by said supporte ing means, and means for preventing movement of the heel-end device in a direction away from the shoe heightwise thereof when the pressure of the toe-end device on the shoe is thus relieved.

2. In a power-operated lasting machine, Wipers for wiping the margin of the toe end of an upper inwardly over an insole on a last, spring-controlled members arranged to support the last and shoe at the toe andheel ends respectively against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting members, operating means for moving the toe-end device automatically in a direction away from the shoe heightwise thereof when the toe wipers are over the shoe bottom to permit the toe end of the shoe to be pressed more rmly against said wipers by the toe-end supporting member, and means for holding the heel-end device against movement in the same direction as said toe-end device when the toe-end device is thus moved by its operating means.

3. In a power-operated lasting machine, wipers for wiping the margin of the toe end of an upper inwardly over an insole on a last, means for supporting the last and shoe yieldingly against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting means, operating means for moving said devices simultaneously heightwise of the shoe to position the shoe relatively to said wipers in the power operation of the machine, said operating means being also movable to relieve Ythe pressure of the toe-end device on the shoe when the toe wipers are over the shoe bottom and thus to permit the toe end of the shoe to be pressed more rmly against said wipers by said supporting means, and mechanism for locking the heelend device against movement in a direction away from the shoe heightwise thereof when the pressure-of the toe end device on the shoe is thus relieved.

4. In a power-operated lasting machine, wipers' for wiping the margin of the toe end of an upper inwardly over an insole on a last, means for supporting the last and shoe yieldingly against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting means, operating means for moving said devices simultaneously in directions heightwise of the shoe in the power operation of the machine, said operating means being movable to retract the toeend device heightwise of the shoe when the toe wipers are over the shoe bottom and thus to permit the toe end of the shoe to be pressed more firmly against said Wipers by said supporting means, and mechanism for preventing a corresponding retractive movement of the heel-end device by said operating means when the toe-end device is thus retracted.

5. In a power-operated lasting machine, wipers for wiping the margin of the toe end of an upper inwardly over an insole on a last, spring-controlled members arranged to support the last and shoe at the toe and heel ends respectively against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting members, an operating member common to said devices for moving them simultaneously heightwise of the shoe in the power operation of the machine, mechanisms associated respectively with said different devices for thus operating them by said member, said operating member being movable to retract the toe-end device heightwise of the shoe when the toe Wipers are over the shoe bottom and thus to permit the toe end of the shoe to be pressed more iirmly against said wipers by the toe-end supporting member, and means for locking the heel-end device against retractive movement heightwise of the shoe when the toe-end device is thus retracted, the mechanism associated with said heel-end device comprising parts relatively movable idly by the movement of said operating member when that device is thus locked.

6. In a power-operated lasting machine, Wipers for wiping the margin of the toe end of an upper inwardly over an insole on a last, spring-controlled members arranged to support the last and Shoe at the toe and heel ends respectively against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting members, an operating member common to said devices for moving them simultaneously'heightwise 0f the shoe in the power operation of the machine, mechanisms associated respectively With said different devices for thus operating them by said member, said operating member being movable to retract the toe-end device heightwise of the shoe when the toe wipers are over the shoe bottom and thus to permit the toe end of the shoe to be pressed more iirmly against said wipers by the toe-end supporting member, a latch for locking the heel-end device against retractive movement heightwise of the shoe when the toe-end device is thus retracted, and means for operating said latch thereafter to release the heel-end device, the mechanism associated with said heel-end device comprising a spring and parts relatively movable against the resistance of said spring by the movement of said operating member when the heel-end device is thus locked and relatively movable by the spring into a normal relation to each other when said device is released by the latch.

'7. In a power-operated lasting machine, toe wipers and heel wipers for wiping the margin of an upper inwardly over an insole on a last at the toe and heel ends respectively, spring-controlled members arranged to support the last and shoe at the toe and heel ends respectively against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said sup'- porting members, the heel-end device being arranged thus to control the shoe through the heel wipers when the toe and heel Wipers are over the shoe bottom, automatic means for relieving the pressure of the toe-end device on the shoe when the wipers are thus over the shoe bottom to permit the toe end of the shoe tol be pressed more rmly against the toe wipers by the toe-end supporting member, and meansI for preventing movement of the heel-end device in a direction away from the shoe heightwise thereof when the pressure of the toe-end device on the shoe is thus relieved.

8. In a power-operated lasting machine, toe wipers and heel wipers for wiping the margin of an upper inwardly over an insole on a last at the toe and heel ends respectively, spring-controlled members arranged to support the last and shoe at the toe and heel ends respectively against pressure on the bottom of the shoe, devices arranged to act on the bottom of the shoe at its toe and heel ends respectively to position the shoe heightwise against the resistance of said supporting members, the heel-end device being arranged thus to control the shoe through the heel wipers when the toe and heel Wipers are over the shoe bottom, an operating member common to said devices for moving them simultaneously heightwise of the shoe in the power operation of the machine, mechanisms associated respectively with said different devices for thus operating them by said member, said operating member being movable to retract the toe-end device heightwise of the shoe when the toe and heel wipers are over the shoe bottom and thus to permit the toe end of the shoe to be pressed more rmly against the toe wipers by the toe-end supporting member, and means for locking the heel-end device against retractive movement heightwise of the shoe when the toe-end device is thus retracted, the mechanism associated with said heel-end device comprising parts relatively movable idly by the movement of said operating member when that device is thus locked.

BERNHARDT J ORGENSEN. 

